Datasheet

LT2178/LT2179
9
21789fc
Please see the LT2078/LT2079 data sheet for applications
information. All comments relating to specifi cations, single
APPLICATIONS INFORMATION
supply operation and phase reversal protection are directly
applicable to the LT2178/LT2179.
–
+
–
+
++
V
IN
0V TO 5V
220k*
50k
1MHz
TRIM
100Hz TRIM
240k TYP
2k
2µF
0.33µF
S1
D1
D2
S2
S3
D3
D4
S4
0.022µF
500pF
POLYSTYRENE
3pF
0.01µF
47k
Q8
2N3906
12k
1.5M
NC
Q7
2N3904
74C14
1N1
1N3
1N4
1N2
GND
V
–
V
+
F
OUT
RESET V
SS
V
DD
CLK Q7
CD4024
1µF
1N4148
1µF
100
A2
1/2 LT2178
10k
7V TO 10V
100k
LT1004-2.5
LTC
®
201
A1
1/2 LT2178
21789 TA03
10M
LINEARITY IS 0.02%
QUIESCENT CURRENT IS 90µA
SUPPLY CURRENT IS 360µA AT 1MHz
DRIFT = 50ppm/°C
*TRWMTR/5 + 120ppm/°C
Micropower 100Hz to 1MHz V-to-F Converter